"Ditto" documentation for another symbol

[grynspan]

Feature Name

"Ditto" documentation for another symbol

Description

I have a bunch of overloads of a symbol that all have exactly the same documentation. Right now, I have to manually maintain the documentation separately—if I change one symbol's documentation, I have to go find all the copies and update them too. It'd be helpful if I could write something like:

/// Flumbs a number.
///
/// - Parameters:
///    - i: The number.
///
/// - Complexity: O(_n_!) where _n_ is really big already.
///
/// Lorem ipsum dolor sit amet blah blah blah.
func f(_ i: Int) {}

/// - Same As: ``f(_i:)-1x2y3``
func f(_ i: UInt)

(Or however you'd want to spell it.)

Motivation

No response

Importance

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Alternatives Considered

No response